Evaluating patterns of weight and body composition change among college women.

The prevalence of obesity increases as women move from adolescence to young adulthood, and college women have been identified as a population at risk for unhealthy weight gain. Studies of weight gain in college populations have revealed that significant, variable weight change occurs in as few as eight weeks, but few have included participants beyond their freshman year of college or assessed body composition. The aims of the study were to use a repeated measures design to identify patterns of weight change among college women at all grade levels and to evaluate factors that may predict weight change over a one-year period. Undergraduate college women (N=131) completed measures of physical activity, dietary restraint, living conditions, and body dissatisfaction at baseline, 6-months, and 12-months. Height, weight, and body composition were collected at all assessment periods. Forty-four percent of participants gained at least 3lb, 23% lost at least 3lb, and 33% maintained weight over one year. Weight change was associated with changes in body fat and was not related to baseline BMI or age. There were no significant differences between grade levels, suggesting that future studies should include women at all grade levels. Baseline physical activity, dietary restraint, living conditions, and body dissatisfaction did not predict weight change at one year, nor did they differentiate between individuals in the three weight change categories. Further research is needed to identify the factors associated with weight gain in young adult women, and such studies should not be limited to college freshmen.